diff --git a/tahoe-capabilities.cabal b/tahoe-capabilities.cabal
index 4f041e26f94e1e95720b0130549208b0e9d7aba1..0aff665faa3c5173620285a60fb4bccd83c2699a 100644
--- a/tahoe-capabilities.cabal
+++ b/tahoe-capabilities.cabal
@@ -52,7 +52,7 @@ author:          Jean-Paul Calderone
 maintainer:      exarkun@twistedmatrix.com
 
 -- A copyright notice.
--- copyright:
+copyright:       2023 The Authors
 category:        Codec
 build-type:      Simple